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some information about krb5_keyblock and related functions

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@12500 ec53bebd-3082-4978-b11e-865c3cabbd6b
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Love Hörnquist Åstrand
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.\" Copyright (c) 2003 Kungliga Tekniska H<>gskolan
.\" (Royal Institute of Technology, Stockholm, Sweden).
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\"
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\"
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" 3. Neither the name of the Institute nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $Id$
.\"
.Dd July 22, 2003
.Dt KRB5_KEYBLOCK 3
.Os HEIMDAL
.Sh NAME
.Nm krb5_keyblock ,
.Nm krb5_keyblock_get_enctype ,
.Nm krb5_copy_keyblock_contents ,
.Nm krb5_free_keyblock ,
.Nm krb5_free_keyblock_contents
.Nd Kerberos 5 key handling functions.
.Sh LIBRARY
Kerberos 5 Library (libkrb5, -lkrb5)
.Sh SYNOPSIS
.In krb5.h
.Pp
.Li krb5_keyblock ;
.Ft krb5_enctype
.Fo krb5_keyblock_get_enctype
.Fa "const krb5_keyblock *block"
.Fc
.Ft krb5_error_code
.Fo krb5_copy_keyblock_contents
.Fa "krb5_context context"
.Fa "const krb5_keyblock *inblock"
.Fa "krb5_keyblock *to"
.Fc
.Sh DESCRIPTION
.Li krb5_keyblock
holds the encryption key for a specific encryption type.
There is no component inside
.Li krb5_keyblock
that is directly referable.
.Pp
.Fn krb5_keyblock_get_enctype
returns the encryption type of the keyblock.
.Pp
.Fn krb5_copy_keyblock_contents
copies the contents of
.Fa inblock
to the
.Fa to
keyblock.
The destination keyblock is overritten.
.Pp
.Fn krb5_free_keyblock
free the content and the keyblock itself.
.Pp
.Fn krb5_free_keyblock_contents
frees the content of the keyblock.
.\" .Sh EXAMPLES
.Sh SEE ALSO
.Xr krb5 3 ,
.Xr krb5.conf 5